1. Q: How many serial modules can the ET200S slave take?
Answer: There is no constraint on the number of ET200 serial port modules, which depends on the number of modules that can be carried by the ET200S site and the constraints of IO addresses.
2. Q: What is the meaning of 4/8/32 byets in ET200S hardware configuration options?
Answer: When configuring the ET200S 1SI interface module, each communication protocol (ASCII, 3964, MODBUS, USS) has 3 versions with different bytes to choose from, such as ASCII (4B), ASCII (8B), ASCII (32B). 4/8/32 bytes represents the throughput rate of data transmission, the larger the number of bytes, the larger the throughput rate, that is, the faster the data transmission, but the more I/O storage area occupied on the ET200S rack, if the transmission rate is considered, 32 B is the fastest, if the occupied I/O area is the smallest, 4B is the least occupied. In practice, you can choose the type of module that suits you according to the requirements.
3. Q: What is the maximum length of data that ET200S 1SI can send and accept?
A: The maximum length for both receiving and sending is 224 bytes.
4.Can the S7-1200 be equipped with ET200S serial port module? Which ones can bring?
Answer: S7-1200 does not have ET200S serial communication instructions, and does not support it.
5. Q: Does the ET200S have a command to empty the buffer?
A: The ET200S does not have an instruction to empty the buffer.
6. Q: Can't find the ET200s Si in the Libraries library?
Answer: You need to install the software of the ET200S first.
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